Three profile options make a connection more robust on unreliable networks:
- Reconnect automatically — bring the tunnel back after a drop.
- Parallel connections — multiplex several links under one session for speed and stability.
- Monitor connection quality — actively ping the gateway to show live latency and detect a dead tunnel fast.
For the heavier‑duty “swap to a reserve session on a second port” feature, see Dual connection, which builds on these.
Reconnect automatically
What it does. If the tunnel drops, Rammbock re‑establishes it instead of leaving you disconnected.
Editor option: Reconnect automatically — “Re‑establish the tunnel if the connection drops.”
Pair this with the kill switch so that, in the gap between the drop and the reconnect, no traffic leaks onto the physical network.
Parallel connections
What it does. SoftEther can carry a single VPN session over several physical TCP links at once. More links add throughput and make the session resilient to any one link stalling or dropping — the session survives on the others.
Editor option: Parallel connections — “Multiplex this many links under one session.”
How many?
| Network | Suggested links |
|---|---|
| Slow / high‑latency | 1–4 |
| Fast / stable | 4–8 |
The value can range from 1 to 32, but more is not always better: each link adds overhead, and on a slow network too many links hurt. Start with the suggestion above and adjust.
This is one SoftEther session with one IP lease, split across multiple connections — different from Dual connection, which keeps a whole second session in reserve.
Monitor connection quality
What it does. Rammbock periodically pings the VPN gateway through the tunnel and:
- shows live latency on the connection screen (e.g.
Latency: 42 ms, orno response), and - detects a dead tunnel quickly — after a few missed probes it declares the tunnel down rather than waiting for a long timeout.
Editor option: Monitor connection quality — “Ping the gateway to show live latency and detect a dropped tunnel faster.”
Fast drop detection is what makes automatic reconnect — and especially Dual connection swaps — happen within seconds instead of after a stall. If you use dual connection, turning this on is strongly recommended.
Caveat with split routing
The probe is sent to the VPN gateway. In a split‑routing mode that gateway may not be reachable through the tunnel, so live latency and fast drop detection can misbehave. The editor notes this when you combine the two.
Putting it together
A solid setup for a flaky mobile network:
| Option | Setting |
|---|---|
| Reconnect automatically | On |
| Monitor connection quality | On (fast drop detection) |
| Parallel connections | 4 (raise to 8 on fast networks) |
| Kill switch | On (no leaks during the reconnect) |
For networks that actively block the VPN — not just drop it — add Dual connection, or fall back to VPN over DNS.